为了适应机载电气系统结构的日益复杂变化,保证电气系统性能的良好性,降低飞行试验的风险,提出了一种机载电气系统半实物仿真方法。以无刷直流电机(brushless DC motor,BLCDM)伺服系统为研究对象,按照RT-LAB建模规则,搭建了系统仿真模型...为了适应机载电气系统结构的日益复杂变化,保证电气系统性能的良好性,降低飞行试验的风险,提出了一种机载电气系统半实物仿真方法。以无刷直流电机(brushless DC motor,BLCDM)伺服系统为研究对象,按照RT-LAB建模规则,搭建了系统仿真模型;设计了以DSP(TMS320F28335)为核心的电动机控制电路和信号调理电路;在CCS3.3开发环境下,完成了电机控制软件的设计。在此平台上,对该伺服系统进行了突加负载和突加给定转速的动态性能仿真,并与全数字仿真的结果进行了对比分析,验证了半实物仿真方法的有效性和准确性。展开更多
The torque-speed characteristics of brushless motor having an interior permanent magnet rotor and a sinusoidal back-emf waveform are compared experimentally when it is operated in brushless AC(BLAC) mode and brushless...The torque-speed characteristics of brushless motor having an interior permanent magnet rotor and a sinusoidal back-emf waveform are compared experimentally when it is operated in brushless AC(BLAC) mode and brushless DC (BLDC) modes with both 2-phase,120° conduction(BLDC-120) and 3-phase,180° conduction(BLDC-180).Particular emphasis is on high-speed,six-step voltage controlled,flux-weakening operation.It is shown that for EV/HEV applications,even for interior PM brushless motors which have sinusoidal back-emf waveforms,in order to achieve maximum torque per ampere capability over wide operation speed range,it is advantageous to employ a hybrid operation mode-BLAC operation in the constant torque region and six-step voltage control(BLDC-180 operation,together with current phase control) in the flux-weakening region.展开更多
文摘为了适应机载电气系统结构的日益复杂变化,保证电气系统性能的良好性,降低飞行试验的风险,提出了一种机载电气系统半实物仿真方法。以无刷直流电机(brushless DC motor,BLCDM)伺服系统为研究对象,按照RT-LAB建模规则,搭建了系统仿真模型;设计了以DSP(TMS320F28335)为核心的电动机控制电路和信号调理电路;在CCS3.3开发环境下,完成了电机控制软件的设计。在此平台上,对该伺服系统进行了突加负载和突加给定转速的动态性能仿真,并与全数字仿真的结果进行了对比分析,验证了半实物仿真方法的有效性和准确性。
文摘The torque-speed characteristics of brushless motor having an interior permanent magnet rotor and a sinusoidal back-emf waveform are compared experimentally when it is operated in brushless AC(BLAC) mode and brushless DC (BLDC) modes with both 2-phase,120° conduction(BLDC-120) and 3-phase,180° conduction(BLDC-180).Particular emphasis is on high-speed,six-step voltage controlled,flux-weakening operation.It is shown that for EV/HEV applications,even for interior PM brushless motors which have sinusoidal back-emf waveforms,in order to achieve maximum torque per ampere capability over wide operation speed range,it is advantageous to employ a hybrid operation mode-BLAC operation in the constant torque region and six-step voltage control(BLDC-180 operation,together with current phase control) in the flux-weakening region.
